我正在嘗試在后端驗證/解碼令牌，然后從解碼的令牌中檢索用戶 UID。令牌由客戶端生成為字符串。后端成功地將數據檢索/設置到 Firebase，這讓我相信 Firebase 正在正確初始化，所以這不是問題。但是，在運行時，似乎存在導致崩潰的錯誤。代碼：public static void main(String[] args) throws IOException, ExecutionException, InterruptedException, FirebaseAuthException { File credentialsFile = getFile(); FileInputStream serviceAccount = new FileInputStream(credentialsFile); FirebaseOptions options = new FirebaseOptions.Builder() .setCredentials(GoogleCredentials.fromStream(serviceAccount)) .setDatabaseUrl("***") .build(); FirebaseApp.initializeApp(options); String idToken = "***"; //LINE 43 IS BELOW FirebaseToken decodedToken = FirebaseAuth.getInstance().verifyIdToken(idToken); String uid = decodedToken.getUid(); System.out.println("UID: " + uid); }錯誤：Exception in thread "main" java.lang.IllegalArgumentException at com.google.api.client.repackaged.com.google.common.base.Preconditions.checkArgument(Preconditions.java:108) at com.google.api.client.util.Preconditions.checkArgument(Preconditions.java:37) at com.google.api.client.json.webtoken.JsonWebSignature$Parser.parse(JsonWebSignature.java:599) at com.google.firebase.auth.FirebaseToken.parse(FirebaseToken.java:44) at com.google.firebase.auth.FirebaseAuth$4.execute(FirebaseAuth.java:484) at com.google.firebase.auth.FirebaseAuth$4.execute(FirebaseAuth.java:477) at com.google.firebase.internal.CallableOperation.call(CallableOperation.java:36) at com.google.firebase.auth.FirebaseAuth.verifyIdToken(FirebaseAuth.java:441) at com.google.firebase.auth.FirebaseAuth.verifyIdToken(FirebaseAuth.java:415) at App.main(App.java:43)FAILURE: Build failed with an exception.
1 回答
九州編程
TA貢獻1785條經驗 獲得超4個贊
解決方案：
正如hiranya-jayathilaka所指出的，問題在于從客戶端生成令牌的方式。這就是我生成令牌的方式：
String idToken = FirebaseInstanceId.getInstance().getToken();
這是根據文檔生成的方式：
FirebaseUser mUser = FirebaseAuth.getInstance().getCurrentUser();
mUser.getIdToken(true)
.addOnCompleteListener(new OnCompleteListener<GetTokenResult>() {
public void onComplete(@NonNull Task<GetTokenResult> task) {
if (task.isSuccessful()) {
String idToken = task.getResult().getToken();
// Send token to your backend via HTTPS
// ...
} else {
// Handle error -> task.getException();
}
}
});
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